Brake for header harvesting-machines.



F. MAZANEK 1R. BRAKE FOR HEADER HARVESTING MACHINES.

APPLICATION HLED. oscjzs. m4.

Patented Apr. 11,

' header harvesting machines.

inn TED STATESPATENT orrrcnl.

FRANK MAZANEK, an, or

BRAKE FOR HEADER HARVESTING-MACHINES.

Specification of Letters Patent.

Patented Apr. 11, 19161.

Application filed-December 23, 1914. Serial No. 878,661.

To all :wkom it may concern: I

Be it known that I, FRAxK MAZAXEK, Jr, a citizen of the United States,.residing at Jennings, in the county of Decatur, State of Kansas, have invented certain new and useful Improvements in Brakes for Header Harvesting Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

- This invention relates to a brake for An object of the invention resides inthe construction of a device of this character which may be attached to the harvesting machines of the types now used.

It' is Well known thatwhen a harvesting machine of the ordinary type is used that very often when it is being moved either up or down hill the double-tree will break and thus the header will ride back upon the horses, or break away and consequently 7 great damage is caused. By the provision of my device this objectionable feature has been done away for the operator may control the movement ofthe'head either when the machine is going up or down hill.

- I have so constructed the machine that the brake may-be applied to either retard 'the rotation of the drive wheels or to coma pletely prevent the rotation of the same,

and I have made provision in the device whereby the necessity of moving the connation and arrangement of trolling lever to any great extent to apply the brake will be obviated.

' I have still further constructed the-device that the surface-0f engagement between the brake band and the brake drum may be vaa fragmental perspective of the crank shaft.'

Fig. 4 is a similar view of the band brake and the means for connecting the same tothe crank shaft and the frame of the header.

, and drum.

1 1g. 5 is a fragmental view, showing the band brake ad usted so as to engage a lesser JENNINGSLKANSAS, ASSIGNOR or ONE-HALF T0 CEDELIEY VACURA, or JENNINGS, KANSAS. a

portion of the periphery of the brake drum than that shown in Fig. Fig. 6 is a sectionon line 6+6 of Fig. 2.

Referring to the drawing wherein like,

parts are indicated by like characters" throughout the several views, the main frame of the header is indicated by theref erence character 1 on which frame the usual drive wheels are mounted. The saidwheels have drive sprockets 3 secured to the spokes thereof. In order that the rotation of these drive wheels 2 may be retarded or completely prevented, I have provided the drive sprocket 3' on one ofthe wheels 2 with an outwardly extending concentric flange 4 which I term the brake drum for the sake of convenience. Mounted on the frame 1 of the machine 'in' ing members 5 which are braced-by forwardly and r'earwardly extending rods 6, said rods. being adjustably secured to'the bearing members and permanently secured to the frame 1. Rotatably' mounted in of the frame 1 is a shaft 7 on which is secured, by means of a pin 8, a crank arm 9 these bearings and extending transversely 1 which normally extends upwardly. Se

cured to the said crank arm 9 is a connect ing member 10 which is at its other end secured to a resilient steel band brake'll,

which partly encircles-the drum at and is at-' tached at its other end, by means of con necting member 12, to the frame 1 of'thef v header.

crank'arm by the use of theholes 13 or may I have connected the member '10 to the crank arm 9 adjustably so that it may be either adjusted vertically on the said 9 5i be adjusted transversely thereof by the use] of the holes 14, the former beingv in the crank arm and varying the surface of the band brake which engages the drum and the latter being inthe member 10 for varying the friction between the said band brake;

brake is secured, by means of rivets 15 a canvas strip 16 which bears against the drum 4 so that a more effective gripping action may be obtained. In order that this band brake 11 may be operated to grip the drum 4, I have provided'on the end of the shaft 7 an upwardly extending integral arm On the inner face, of the band v spaced relation to-the drive wheels 2 and to each other are upwardly extending bear- I a i 17 at one end thereof to which is pivotally connected a controlling link 18, the said arm 17 and controlling link 18 having a the controlling lever to operate. the band brake. This link 18 is connected to a suit able controlling lever- 19 which is pivoted to and cooperates with a quadrant rack 20, the latter being secured to the main beam of the header within convenient reach of the operator.

In operation when it is desired to control the movement of the header when the same is going either up or down hill for the reason previously stated, the controlling lever 19. is operated so that the band brake 11 is m applied to the drum 4. Now should it be desired to increas'e'the surface of engagement between the band brake 11 and the drum 4 so that the brake may be more effectively applied, the connecting member 10 is adjusted vertically downwardly on the crank arm 9. It will be readily appreciated that this is sometimes necessary because of the fact that the band brake 11 wears during continual use and it is not desirable to obtain this adjustment by allowing the controlling arm to rest adjacent the end of the quadrant for when the brake wears more and more so will the lever have to be moved farther rearwardly until finally there will be no room to operate the same to apply the brake, therefore the construction which I have devised, allows the controlling lever to be maintained in a vertical position when the brake is inoperative. Furthermore it is often desirable to change the leverage on the crank shaft and I have provided holes in the arm 17 whereby the connecting link 18 may be adjusted either upwardly or downwardly and consequently the length of the lever arm changed.

From the foregoing description it will be seen that I have provided a band brake which is specially constructed for use on header harvesting machines, and I have so constructed the device that the surface of engagement between the band brake and drum may be varied as theoccasion arises, and I have also constructed the device so that the frictional engagement between the said brake and drum may be .varied without varying the amount of movement of the controlling lever.-

While I have illustrated and described a particular embodiment of my invention, I have merely done so for the sake of convenience and I do not wish to be limited to that particular embodiment as it is obvious that numerous changes may be made in the details of construction thereof without departing from the spirit of the invention or exceeding the scope ,of the appended claims.

What I claim is 1. In combination with a brake drum, of a shaft mounted for oscillation adjacent said drum, a crank arm on-the shaft, said arm being provided with a longitudinally disposed series of spaced openings, a brake band having one end fixed adjacent said shaft and passing over said drum, a strap member secured to the free end of said band,

said member being provided'with a longitudinally disposed series of spaced openings adapted for registration with those of said arm, a second crank arm on said shaft having a longitudinally disposed series of spaced openings, a link having a series of spaced apertures adapted for registration with those of said second crank arm, and means for detachably securing said. link and member to said arms respectively.

2. Incombination a drum, a shaft mount ed adjacent said drum, a crank arm, having a vertical series of holes, secured to the said shaft, a connecting member pivotally secured to said crank arm and having a plw 'rality of spaced apertures therein, the said member being adjustable transversely and longitudinally of the said crank arm, a hand brake secured to said member, partly encircling the'said drum and permanently secured at its other end adjacent said shaft, and means for rotating the said shaft.

'In testimony whereof, I afiix my signature, in the presence of two witnesses.

FRANK MAZANEK, JR. Witnesses:

B. W. WnRNE'rTE, J. F. LEONARD. 

